PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Hazardous gases and minerals can be released, such as hydrogen sulphide, arsenic, mercury and ammonia.
http://www.w3.org/ns/prov#wasQuotedFrom
  • thezeitgeistmovement.com